User manual HITACHI DH 24PB

[. . . ] Do not let visitors touch the tool or extension cord. All visitors should be kept away from work area. When not in use, tools should be stored in a dry, high or locked up place, out of reach of children. It will do the job better and safer at the rate for which it was intended. [. . . ] Dump particles after every two or three holes when drilling. Selecting the driver bit Screw heads or bits will be damaged unless a bit appropriate for the screw diameter is employed to drive in the screws. Power source Ensure that the power source to be utilized conforms to the power requirements specified on the product nameplate. Power switch Ensure that the power switch is in the OFF position. If the plug is connected to a receptacle while the power switch is in the ON position, the power tool will start operating immediately, which could cause a serious accident. Extension cord When the work area is removed from the power source, use an extension cord of sufficient thickness and rated capacity. The extension cord should be kept as short as practicable. (3) To remove the drill bit, fully pull the grip in the direction of the arrow and pull out the drill bit. 3) When using a rotary hammer or upward drilling operations attach a dust cup or dust collector (B) to collect dust or particles for easy operation. Installing the dust cup Use the dust cup by attaching to the drill bit as shown in Fig. When using a bit which has big diameter, enlarge the center hole of the dust cup with this rotary hammer. Installing dust collector (B) When using dust collector (B), insert dust collector (B) from the tip of the bit by aligning it to the groove on the grip. 3) CAUTION: The dust cup and dust collector (B) are for exclusive use of concrete drilling work. Do not use them for wood or metal drilling work. insert dust collector (B) completely into the chuck part of the main unit. When turning the rotary hammer on while dust collector (B) is detached from a concrete surface, dust collector (B) will rotate together with the drill bit. Make sure to turn on the switch after pressing the dust cup on the concrete surface. (When using dust collector (B) attached to a drill bit that has more than 190 mm of overall length, dust collector (B) cannot touch the concrete surface and will rotate. Therefore please use CAUTION: To prevent accidents, make sure to turn the switch off and disconnect the plug from the receptacle when the drill pits and other various parts are installed or removed. The power switch should also be turned off during a work break and after work. To turn the drill OFF, pull the trigger switch again and release. (2) DH24PB The rotation speed of the drill bit can be controlled steplessly by varying the amount that the trigger switch is pulled. [. . . ] Further use of the rotary hammer with lock off grease will cause the machine to seize up reduce the service life. Excercise extreme caution in disassembling and reassembling the motor, following the above procedures exactly. Do not attempt to disassemble any parts other than those necessary to effect replacement of the carbon brush. NOTE: Due to HITACHI's continuing program of research and development, the specifications herein are subject to change without prior notice. [. . . ]